U5 1917 (23 Aug.) U5 (light fox marks) to London, bearing 1916 2d. and 2½d. tied by Pleasant Island c.d.s. and showing "CENSORED" h.s. in violet with, on reverse, Ship Mail Room Melbourne transit c.d.s.; 1917 (19 Oct.) U5 (small faults) registered to Sydney, bearing 1916 1d. (5) tied by Pleasant Island c.d.s. and showing violet registration h.s.